Russia’s Rassvet low-Earth-orbit satellite network is already providing at least two communications windows over Ukraine each day, underscoring Moscow’s accelerated effort to build an independent broadband system with potential battlefield applications. Each window can last for more than an hour as satellites pass within usable range. The development marks an important intermediate stage for a constellation that is still far from continuous coverage. Ukraine’s military intelligence says Russia has moved faster than originally expected in deploying Rassvet, with 16 satellites forming the core of the system. Major General Vadym Skibitskyi, deputy head of Ukraine’s Defence Intelligence, said Moscow intends to expand the network to 292 satellites by 2027 and ultimately 924 by 2035.
Rassvet currently works intermittently because connectivity depends on a satellite being above the required territory. The availability of two extended windows each day means the network has nevertheless crossed a threshold where it could support scheduled communications rather than isolated technical demonstrations. Continuous service would require a much denser constellation allowing one spacecraft to replace another as satellites move rapidly across the sky.
Bureau 1440, the Moscow-based aerospace company developing the system, began experimental work with three Rassvet-1 satellites launched in June 2023. Three Rassvet-2 spacecraft followed in May 2024. Those missions tested satellite broadband, 5G non-terrestrial networking and laser links between spacecraft. The company says its technology is designed for connections reaching as much as 1 gigabit per second, with signal latency below 70 milliseconds.
Deployment moved from experimentation towards an operational constellation when the first 16 production satellites were placed in orbit on March 23 this year. Bureau 1440 subsequently reported another package launch on July 20, signalling that production and launch activity were beginning to move towards the higher cadence required for a large network.
Ukraine is watching the programme particularly closely because low-latency satellite communications have become central to command networks, reconnaissance and unmanned systems during the war. Starlink connectivity has provided Kyiv with resilient communications where terrestrial networks were damaged or unavailable and has also supported drone operations across widely dispersed units. Russia had obtained Starlink terminals through unofficial channels, but measures were introduced to restrict unauthorised Russian military use.
A sovereign satellite network could eventually reduce Moscow’s dependence on communications infrastructure controlled by foreign companies. Ukraine’s intelligence agencies are therefore examining possible countermeasures before Rassvet achieves uninterrupted coverage. Skibitskyi has said the system presently remains constrained by orbital passes but would operate on broadly the same principle as Starlink once enough satellites are deployed.
Rassvet also fits Russia’s broader drive for technological autonomy under sanctions and wartime restrictions. Bureau 1440 describes the system primarily as commercial infrastructure capable of serving remote communities, transport operators, government agencies, aviation, shipping and telecommunications companies. Its satellites are designed to communicate through laser links, which can move data between spacecraft and reduce dependence on a large number of ground gateway stations.
The architecture relies on spacecraft in low Earth orbit, where comparatively short distances between satellites and users can deliver lower latency than traditional geostationary systems. The trade-off is the requirement for many satellites because individual spacecraft move quickly across the sky and remain visible from any particular location for limited periods. Academic modelling of LEO constellations shows that continuous regional coverage depends heavily on satellite numbers, orbital inclination, altitude and minimum elevation angles.
Russia’s planned expansion therefore represents a substantial industrial challenge. Hundreds of satellites must be manufactured, launched, commissioned and replaced over the network’s operating life, while terminals, gateway infrastructure and software must mature alongside the spacecraft. One of the first operational Rassvet satellites launched in March was reported to have re-entered the atmosphere after failing to raise its orbit, illustrating the attrition that large constellations must accommodate.
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